The larvae of the Australian endemic species Barretthydrus tibialis Lea, 1927 and Barretthydrus geminatus Lea, 1927 are described and illustrated for the first time, with detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment, and urogomphi. A parsimony analysis based on 118 informative larval characteristics of 34 species in all 10 tribes of the subfamily Hydroporinae was conducted using the program TNT. No clear larval morphological synapomorphies support the monophyletic origin of the tribe Hydroporini. Compared to other known larvae of Hydroporini, Barretthydrus Lea is postulated to share a closer phylogenetic relationship with Antiporus Sharp, which reinforces their inclusion in the subtribe Sternopriscina.

Descriptions, diagnoses, locality and temporal records, distributional maps, and illustrations of the 11 species of Ancognatha Erichson occurring in Ecuador are provided. Four new country records are reported for Ecuador, and a new species is described. A female lectotype at the Natural History Museum (London) for Ancognatha jamesoni Murray is designated. A key to the Ecuadorian species is included.

Cyanomethia pseudothonalmus Philips and Ivie was known only from the single male holotype. Recent collection of additional specimens from St. John, Virgin Islands, allowed the description of the previously unknown female. Information on the biology of this species is also given. The two unique specimens used to describe Methia taina Zayas and Tessaropa luctuosa Zayas from eastern Cuba were restudied, and the former is considered to be the female of the latter. Therefore, M. taina is considered a junior synonym of Tessaropa luctuosa Zayas, new synonymy. A damaged and enigmatic specimen illustrated in the literature was studied and placed in Tessaropa Haldeman as an undescribed species.A new key to genera of West Indian Methiini is provided.

Except for catalog listings, Aleochara repetita Sharp, from Panamá and Brazil (Pará), has not been studied since its original description in 1887. Here, we record it again from Pará and two additional Brazilian states, Distrito Federal and Paraná. After examination of the type material, the species is transferred to the subgenus Xenochara Mulsant and Rey. Aleochara repetita is very similar to Aleochara opacula Bernhauer, from which it differs by the strongly sinuate and deeply U-shaped posterior margin of tergite VIII of the female and the spermatheca with a somewhat globose chamber. Here, for the first time, the male and female genitalia of the species are illustrated.

Two new species of Anticyphon Ruta are described from Tucumán in northern Argentina and Azuay Province in southern Ecuador. The Argentine record greatly extends the known geographical range of the genus. The female of Anticyphon was known only for a single species, A. oyonensis Ruta. Anticyphon lescheni Ruta, new species, is the second species of the genus with a known female. In the case of both species, females have five vaginal sclerites and elongated, lanceolate bursal sclerites. It can be expected that more undescribed species of Anticyphon occur in high altitude Andean habitats.

An infestation of the ambrosia beetle, Euplatypus parallelus (F.) (Coleoptera: Curculionidae: Platypodinae) on arecanut, Areca catechu L., is reported from the state of Karnataka in southwestern India for the first time. The visible symptoms on healthy and younger palms include oozing of a yellowish brown resinous exudation from infested stems. Small, pinheadsize holes were visible after removal of the resinous exudation. Symptoms on older, stressed, and diseased palms appear as extrusion of sawdust frass in the form of loose, cylindrical strings. Fronds of infested palms lose vigor and turn yellow. The size of the larval galleries varied 1.40–1.46 mm in diameter. Large numbers of larvae, pupae, and adults were found in the galleries of affected palms. Adult beetles are slender, 4.0–4.2mmlong, and brownish with yellowish hairs. Male and female specimens were distinguished based on the elytral declivity. The taxonomic identity of the species was confirmed by amplification of 649 base pairs of the mitochondrial cytochrome oxidase I gene. In a climate change scenario, this beetle may become a serious threat to arecanut production in India and elsewhere.

Ganganomala saltini Ratcliffe, Jameson, and Zorn, a new genus and new species of Anomalini (subtribe Anomalina), is described fromBangladesh and Nepal. To place the new genus within the context of the tribe and subtribe, we provide a key to the four subtribes of world Anomalini, a list of comparative characters and character states for diagnosis and classification of Old World Anomalina, and comparative diagnostic characters for genera of Old World Anomalina. Circumscription, description, diagnosis, and illustrations for the new genus and species are provided. As a result of this research, the Anomalina includes 50 genera and subgenera, and advances our understanding of global anomaline biodiversity.

Larval records, distributional records, biological information, and comments on probable erroneous literature records are presented for 55 species and subspecies of North American Cerambycidae in the genera Mallodon Lacordaire, Orthosoma Audinet-Serville, Aethecerinus Fall and Cockerell, Aneflomorpha Casey, Anelaphus Linsley, Calloides LeConte, Cyrtophorus LeConte, Eburia Lacordaire, Elaphidionopsis Linsley, Elytroleptus Dugés, Enaphalodes Haldeman, Euderces LeConte, Heterachthes Newman, Lissonotus Dalman, Megacyllene Casey, Microclytus LeConte, Neaneflus Linsley, Neoclytus Thomson, Obrium Dejean, Pentanodes Schaeffer, Phymatodes Mulsant, Piezocera Audinet-Serville, Pilostenaspis Eya, Psyrassa Pascoe, Purpuricenus Dejean, Rosalia Audinet-Serville, Semanotus Mulsant, Stenaspis Audinet-Serville, Tessaropa Haldeman, Tilloclytus Bates, Tragidion Audinet-Serville, Xylotrechus Chevrolat, Necydalis Linnaeus, Neobellamira Swaine and Hopping, Strangalia Audinet-Serville, Typocerus LeConte, Ataxia Haldeman, Cacostola Fairmaire and Germain, Goes LeConte, Oberea Mulsant, Oncideres Lacordaire, Phaea Newman, and Saperda Fabricius. First larval host records are presented for 11 species: Aneflomorpha luteicornis Linsley, Aneflomorpha parkeri Knull, Elytroleptus ignitus (LeConte), Elytroleptus immaculipennis Knull, Pentanodes dietzi Schaeffer, Phymatodes lengi Joutel, Psyrassa castanea Bates, Purpuricenus opacus (Knull), Stenaspis verticalis arizonicus Casey, Typocerus gloriosus Hopping, and Cacostola lineata Hamilton.

Notes on morphological variation in Parastrongylaspis thomasiGiesbert, 1992 are provided, and the holotype is figured for the first time. A new species of the subgenus Yvesandra Santos-Silva and Shute, 2009 of the genus Birandra Santos-Silva, 2002 is described from Peru. A key to males of Yvesandra is provided. New distribution records for Parandra (Parandra) gilloglyiSantos-Silva and Lezama, 2010 and Acutandra caterinoiLingafelter and Tishechkin, 2017 are listed.

We report three species of Nitops Murray (Nitidulidae: Carpophilinae) sampled from fallen and freshly withered flowers of the columnar cactus Stenocereus pruinosus (Otto) Buxb. (Cactaceae) in a subtropical dry forest in Guatemala. Our observations suggest that adults of these species oviposit inside the flowers during or prior to the blooming period, and the larvae feed on floral tissues. Larval feeding likely occurs without damaging floral ovaries due to flower abscission.

The larval morphology, including chaetotaxy of the head capsule and head appendages, of Armostus ohyamatensisHoshina and Satô, 2006 is described in detail. This is the first description of larval morphology for the genus Armostus Sharp, 1890. Adults and larvae were associated using DNA barcoding of a molecular marker, 658 bp of mitochondrial cytochrome c oxidase I. Larvae of Armostus Sharp resemble other megasternine larvae, but they have a unique feature within the known hydrophilid larvae, i.e., incompletely cylindrically sclerotized maxillary palpomere 2.

Gnypeta koreana Song and Ahn, new species, is described from South Korea. The new species is compared with a morphologically similar species of the genus, Gnypeta opaca Bernhauer, which is recorded from North Korea. A description, habitus photograph, and other illustrations of the diagnostic characters are provided.

Two new species of the genus Neacratus Alonso-Zarazaga, Lyal, Sforzi, and Bartolozzi, 1999 are described and illustrated: Neacratus ater Mantilleri, new species, from Peru, belonging to the “obtusus group”; and Neacratus caballorum Mantilleri, new species, from French Guiana. They are compared to other species of the genus.

Cryptocanthon chimalapensis Mora-Aguilar and Delgado, a new species from the cloud forest of the region of Chimalapas, Oaxaca, Mexico, is described and illustrated. A key to identify the known Mexican species of Cryptocanthon Balthasar is included.

A new species of Stenocrates Burmeister, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini) from Peru is described: Stenocrates lissothorax Ratcliffe and Figueroa.Adescription, diagnosis, distribution, and illustrations of the new species are provided. This represents the 52^nd species in the genus, and the 15^th species known from Peru.

The Ecuadorian Amazonian canopy has revealed a new genus, Callibora Cognato (type species Callibora sarahsmithae Cognato, new species). This new genus represents a presumably endemic species related to a Neotropical radiation of xyleborines belonging to the Dryocoetoides Hopkins/ Sampsonius Eggers/ Dinoxyleborus Smith species clade. A truncated elytral declivity and inflated protibae distinguish it from other Neotropical xyleborine genera.

Gigantotrichoderes cummingi Botero, Le Tirant, and Santos-Silva, new species from Mexico, is described and illustrated. A key to the species of Gigantotrichoderes Tippmann is provided. The geographical distribution of Gigantotrichoderes flabellicornis (Zajciw) is expanded to include Colombia (Vichada), and the distribution of Gigantotrichoderes conicicollis Tippmann is expanded in Colombia to include the department of Valle del Cauca.

The aim of this study was to research species composition, seasonality, and biomass of coprophagous beetles inhabiting moose dung in Kampinoski Park Narodowy, Poland. Field studies were performed from the beginning of March until the end of September 2016. Altogether, 19,234 specimens of coprophagous beetles representing 33 species were collected. Two evident peaks in numbers and biomass were observed during the study season, along with changes in dominance of species in consecutive months. Overall, the most abundant species were Acrossus rufipes (Linnaeus) (37%), Acrossus depressus (Kugelann) (21%), and Anoplotrupes stercorosus (Scriba) (13%). Seasonality of the most numerous species did not differ significantly from that noted by other authors from Central Europe. The collected species were divided into four groups according to the number and time of population peaks during the season. Most of the species are univoltine. only one species may be considered as bivoltine.

TheWest Indian Cyrtosoma Perty are revised. Three species are described: Cyrtosoma dominicae Spiessberger and Ivie, new species from Dominica; Cyrtosoma luciae Spiessberger and Ivie, new species from Saint Lucia; and Cyrtosoma vincenti Spiessberger and Ivie, new species from Saint Vincent. A key to theWest Indian species of Cyrtosoma is provided. Authorship of Cyrtosoma lherminierii (Guérin-Méneville) is clarified. Platydema piceaLaporte and Brullé, 1831 is placed in Hesiodus Champion as Hesiodus piceus (Laporte and Brullé), new combination, a senior synonym of Hesiodus caraibus Fleutiaux and Sallé, new synonymy.

In 2015, a trapping effort was initiated to collect individuals of the polyphagous shot hole borer, Euwallacea nr. fornicatus (Eichhoff), at five sites in northern Vietnam. The traps tested the usage of quercivorol (paramenthenol), a-copaene, cubeb oil, conophthorin, and ethanol as potential lures. These compounds have been effective in collecting individuals in the USA but have not been tested within the species' putative native range. As reported for the USA, the species responded best to the quercivorol lure. Throughout the duration of the study, 21 species were collected. Among them were Ambrosiophilus nodulosus (Eggers, 1941), Beaverium magnus (Niisima, 1910), new combination, Xyleborus glabratus Eichhoff, 1877, and Xylosandrus discolor (Blandford, 1898), all of which are new country records. Arixyleborus nudulus Smith, Rabaglia, and Cognato, new species, was also collected and is described and illustrated.

As part of a revision and investigations into the Neotropical ground beetle genus Plochionus Dejean, 1821, it was necessary to stabilize the type material. This genus is of interest for its species' predatory associations with tent-forming caterpillars. The type specimens of Plochionus pallens (Fabricius, 1775) were until this investigation considered lost. Whilst investigating the Sir Joseph Banks Coleoptera collection in the Natural History Museum, an example of Carabus pallensFabricius, 1775 was discovered.Another specimen was also known inWilliamHunter's collection at the HunterianMuseumof Zoology, thus making available a syntype series for further research. Typically, Fabricius did not state the number of specimens on which he based his description, but here we assume these two specimens to be the extant total available for lectotype designation. Here we designate the lectotype and paralectotype of Carabus pallens. Lebia bonfilsii Audinet-Serville, 1821 is the type species of Plochionus by monotypy, but the name is a junior synonym of C. pallens. Plochionus pallens has a worldwide distribution. Formerly, it was thought to have been transported by ballast fromEurope to North America. Based onmuseum specimen label data, this species is predatory on other insects (Lepidoptera) transported by trade in commercial foodstuffs.

Limonius seibertae Etzler, new species (Elateridae: Dendrometrinae), is described from Petroleum Co., Montana. The application of Limonius consimilisWalker, 1866 is amended to align with the concepts proposed by M. C. Lane in 1971. Limonius consimilis is the correct name for the North American species traditionally treated as Limonius nitidulusHorn, 1871, which is returned to synonymy, and L. consimilis auct. is corrected to Limonius leconteiLane, 1971. A key to members of the Limonius consimilis species-group is provided.

Adults of 16 species of Dytiscidae (Coleoptera: Adephaga) were collected in wetland habitats of Akimiski Island (Nunavut, Canada). Except for Colymbetes dolabratus (Paykull) and Hydroporus lapponum Gyllenhal, both of which are considered Arctic or Subarctic elements, all other species collected are characteristic of the Boreal ecozone. Whereas all species sampled are deemed to have a transcontinental distribution in North America, four species, Agabus antennatus Leech, Dytiscus circumcinctus Ahrens, Rhantus sericans Sharp, and Neoscutopterus hornii Crotch, stand out as primarily Western species.